<script setup lang="ts">
import { getIndustryListAPI,createEnterpriseAPI } from '@/apis/enterprise';
import type { Industry, EnterpriseParams } from '@/types/enterprise';
import type { FormRules, UploadRequestOptions,UploadRawFile,FormInstance } from 'element-plus';
import { ref } from 'vue';
import { uploadAPI } from '@/apis/common';
import type { UploadUserFile } from 'element-plus';
import { CircleCheck } from '@element-plus/icons-vue';
import { ElMessage } from 'element-plus';
import { useRouter } from 'vue-router';

// 根据接口文档定义字段，用于表单双向绑定
const addForm = ref<EnterpriseParams>({
  name: '', // 企业名称
  legalPerson: '', // 法人
  registeredAddress: '', // 注册地址
  industryCode: undefined, // 所在行业
  contact: '', // 企业联系人
  contactNumber: '', // 联系人电话
  businessLicenseUrl: '', // 营业执照url
  businessLicenseId: 0, // 营业执照id
});

// 表单校验规则
const addRules = ref<FormRules<EnterpriseParams>>({
  name: [
    { required: true, message: '请输入企业名称', trigger: 'blur' },
    {
      min: 1,
      max: 20,
      message: '企业名称长度在 1 到 20 个字符',
      trigger: 'blur',
    },
  ],

  legalPerson: [{ required: true, message: '请输入法人', trigger: 'blur' }],

  registeredAddress: [
    { required: true, message: '请输入注册地址', trigger: 'blur' },
  ],

  industryCode: [
    { required: true, message: '请选择所在行业', trigger: 'change' },
  ],

  contact: [{ required: true, message: '请输入企业联系人', trigger: 'blur' }],

  contactNumber: [
    { required: true, message: '请输入联系人电话', trigger: 'blur' },
    // 对手机号进行校验
    {
      pattern: /^1[3-9]\d{9}$/,
      message: '请输入正确的手机号码',
      trigger: 'blur',
    },
  ],

  businessLicenseUrl: [
    { required: true, message: '请上传营业执照', trigger: 'blur' },
  ],
});

const industryList = ref<Industry[]>([]);
const getIndustryList = async () => {
  const res = await getIndustryListAPI();
  industryList.value = res.data;
};
getIndustryList();

// 自定义上传
const onUploadRequest = async (options: UploadRequestOptions) => {
  // 1. 准备 FormData 对象
  const fd = new FormData();
  // 2. 根据后端要求准备字段
  fd.append('file', options.file as File);
  fd.append('type', 'businessLicense');
  // 3. 调用接口上传文件
  const res = await uploadAPI(fd);
  // 保存营业执照url和id
  addForm.value.businessLicenseUrl = res.data.url;
  addForm.value.businessLicenseId = res.data.id;
  // 主动触发校验，如果校验通过，会错误信息cu
  formRef.value?.validateField('businessLicenseUrl');
  // 4. 检查上传结果 并return
  // console.log('res', res.data.url);
  return res.data.url;
};

// 删除上传的营业执照
const removeUpload = () => {
  addForm.value.businessLicenseUrl = '';
  addForm.value.businessLicenseId = undefined;
};

const fileList = ref<UploadUserFile[]>([]); // 营业执照列表

const beforeUpload = (rawFile: UploadRawFile) => {
  if (rawFile.size > 5 * 1024 * 1024) {
    ElMessage.error('上传营业执照图片大小不能超过 5MB!');
    return false;
  } else {
    return true;
  }
};
// 用于整个表单提交时校验
const formRef = ref<FormInstance>();

// 获取路由实例
const router = useRouter();
// 加载状态按钮(禁用提交，避免重复提交)
const submitLoading = ref(false)
// 用于提交表单
const onSubmit = async () => {
 try{
  // 校验表单
  await formRef.value?.validate();
  // 把按钮设置为加载状态(禁用提交，避免重复提交)
  submitLoading.value = true
  // 提交表单给后端
  await createEnterpriseAPI(addForm.value);
  ElMessage.success('添加成功');
  // 跳转回企业列表
  router.back()
 } catch (error) {
  ElMessage.error('添加失败');
    // 提交失败，注意恢复按钮状态
    submitLoading.value = false
 } 
};

// 重置表单
const onReset = () => {
  formRef.value?.resetFields();
};
</script>

<template>
  <div class="add-enterprise">
    <header class="add-header">
      <el-page-header content="添加企业" @back="$router.back()" />
    </header>
    <main class="add-main">
      <div class="form-container">
        <div class="title">企业信息</div>
        <div class="form">
          <el-form ref="formRef" :model="addForm" :rules="addRules"  label-width="100px">
            <el-form-item label="企业名称" prop="name">
              <el-input v-model="addForm.name" />
            </el-form-item>

            <el-form-item label="法人" prop="legalPerson">
              <el-input v-model="addForm.legalPerson" />
            </el-form-item>

            <el-form-item label="注册地址" prop="registeredAddress">
              <el-input v-model="addForm.registeredAddress" />
            </el-form-item>

            <el-form-item label="所在行业" prop="industryCode">
              <el-select v-model="addForm.industryCode" clearable>
              <el-option
                v-for="item in industryList"
                :key="item.industryCode"
                :label="item.industryName"
                :value="item.industryCode"
              />
              </el-select>
            </el-form-item>

            <el-form-item label="企业联系人" prop="contact">
              <el-input v-model="addForm.contact" />
            </el-form-item>

            <el-form-item label="联系电话" prop="contactNumber">
              <el-input v-model="addForm.contactNumber" :maxlength="11" />
            </el-form-item>

            <el-form-item label="营业执照" prop="businessLicenseUrl">
              <!-- :http-request 自定义上传函数 -->
              <el-upload
                :http-request="onUploadRequest"
                list-type="picture"
                :limit="2"
                v-model:file-list="fileList"
                accept=".png,.jpg,.jpeg"
                :before-upload="beforeUpload"
              >
                <el-button
                  v-if="fileList.length === 0"
                  size="small"
                  type="primary"
                  >点击上传</el-button
                  @remove="removeUpload"
                >
                <el-button v-else type="success" :icon="CircleCheck" disabled
                  >已上传</el-button
                >
                <template #tip>
                  <div class="el-upload__tip">
                    支持扩展名：.png .jpg .jpeg, 文件大小不得超过5M
                  </div>
                </template>
              </el-upload>
            </el-form-item>
          </el-form>
        </div>
      </div>
    </main>
    <footer class="add-footer">
      <div class="btn-container">
        <el-button @click="onReset()">重置</el-button>
        <el-button type="primary" @click="onSubmit()" :loading="submitLoading">确定</el-button>
      </div>
    </footer>
  </div>
</template>

<style scoped lang="scss">
.add-enterprise {
  background-color: #f4f6f8;
  height: 100vh;

  .add-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    height: 64px;
    line-height: 64px;
    font-size: 16px;
    font-weight: bold;
    background-color: #fff;

    .left {
      span {
        margin-right: 4px;
      }

      .arrow {
        cursor: pointer;
      }
    }

    .right {
      text-align: right;
    }
  }

  .add-main {
    background: #f4f6f8;
    padding: 20px 130px;

    .form-container {
      background-color: #fff;

      .title {
        height: 60px;
        line-height: 60px;
        padding-left: 20px;
      }

      .form {
        margin-bottom: 20px;
        padding: 20px 65px 24px;

        .el-form {
          display: flex;
          flex-wrap: wrap;

          .el-form-item {
            width: 50%;
          }
        }
      }
    }
  }

  .add-footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    padding: 24px 50px;
    color: #000000d9;
    font-size: 14px;
    background: #fff;
    text-align: center;
  }
}
</style>
